diff options
Diffstat (limited to 'sys/dev/usb/controller/ehci.c')
| -rw-r--r-- | sys/dev/usb/controller/ehci.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/sys/dev/usb/controller/ehci.c b/sys/dev/usb/controller/ehci.c index 952dd98..03ecc37 100644 --- a/sys/dev/usb/controller/ehci.c +++ b/sys/dev/usb/controller/ehci.c @@ -1340,25 +1340,22 @@ ehci_check_transfer(struct usb_xfer *xfer) } } else if (methods == &ehci_device_isoc_hs_methods) { ehci_itd_t *td; + uint8_t n = (xfer->nframes & 7); /* isochronous high speed transfer */ + /* check last transfer */ td = xfer->td_transfer_last; usb_pc_cpu_invalidate(td->page_cache); - status = - td->itd_status[0] | td->itd_status[1] | - td->itd_status[2] | td->itd_status[3] | - td->itd_status[4] | td->itd_status[5] | - td->itd_status[6] | td->itd_status[7]; + if (n == 0) + status = td->itd_status[7]; + else + status = td->itd_status[n-1]; /* also check first transfer */ td = xfer->td_transfer_first; usb_pc_cpu_invalidate(td->page_cache); - status |= - td->itd_status[0] | td->itd_status[1] | - td->itd_status[2] | td->itd_status[3] | - td->itd_status[4] | td->itd_status[5] | - td->itd_status[6] | td->itd_status[7]; + status |= td->itd_status[0]; /* if no transactions are active we continue */ if (!(status & htohc32(sc, EHCI_ITD_ACTIVE))) { |
